Refrigerator



Patented Dec. 31, 1929` i UNITED STATES PATENT OFFICE.

THOMAS J'. LITLE, JR., DETROIT, MICHIGAN, ASSIGNOR TO COPELAND PRODUCTS,

INC., F DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN REFRIGERATOB Application led August 12, 1926. Serial No. 128,724.

.shown in the accompanying dra-wing, in

which:

Fig. 1 is a perspective of a refrigerator with certain parts broken away showing an embodiment of my invention therein.

Fig. 2 is an enlarged fragmentary sectional view of the condenser embodied in my inven tion taken as on the line 2 2 of Figure 1.

I have shown a refrigerator cabinet 1 having a plurality of compartments 2 and 3 therein. The lower portion of the back wall 4 is cut away as at 5 thus providing a back opening into compartment 3 in which is positioned the motor 6 having the fan 7 secured thereto and the compressor 8 of the refrigerating apparatus operatively connected therewith. The condenser 9 of the refrigerat-ing apparatus is comprised of two metal sheets and 21 imposed upon each other and secured together at their edges by welding as at 10, and secured together at a plurality of points on their adjacent surfaces by spot welding as at 11. The unattached portions of the adjacent surfaces of the plates are bent away from each other to form the spaces 12 through which the refrigerant circulates.

The sheets are bent to form a rectangular chimney like condenser which is mounted upon the upper portion of the back wall 4.

Outlet pipe 13 connects the condenser 9 with the expansion chamber of the refrigerating apparatus, which is positioned within the upper portion of cabinet 1, and inlet pipe 14 connects the condenser 9 with compressor 8.

A. plate is positioned over the opening 5 and is secured to the lower edge of compartment 3 and to the lower outside edge of condenser 9.

In operation, the motor 6 revolves the fan 7, which drives air outwardly through opening 5 against plate 15, which deflects and' guidesit upwardly over the surfaces of condenser 9. vThis forced circulation of air over the surfaces of condenser 9 cools it and accelerates the condensation of the refrigerant contained therein.

The fan 7, opening 5 and plate 15 may be dispensed with if desired and dependence for accelerated cooling of the condenser 9 placed upon the natural upward movement of the air currents which would occur along the back wall 4 when it is placed adjacent the wall of the. room in which the refrigerator is situated.

It will be obvious that various changes may be made in the arrangement, combination and construction of the various parts of my improved device without departing from the spirit of my invention, and it is my intention to cover by my claims such changes as may be reasonably included within the scope thereof.

What I claim is:

1. In a mechanically cooled refrigerator cabinet having an opening in the lower portion of a vertical wall thereof, a. condenser forming a 'flue positioned along the upper portion of said wall, a motor positioned in the lower portion of said refrigerator, having a compressor operatively connected thereto, and having a fan thereon for driving air currents outwardly through said opening in said Wall of said refrigerator, and means for guiding said air currents into said flue.

2. In a mechanically cooled refrigerator cabinet having an opening in the lower portion of a vertically extending wall thereof, a condenser forming a flue positioned along the upper outside portion of said wall, a motor positioned in the lower portion of said refrigerator having a fan thereon for driving air currents outwardly through said opening in said wall of said refrigerator, and a plate positioned over said opening in the back or side wall of said refrigerator for guiding said air currents into saidiiue.

3. A refrigerator cabinet having a refrigerant condenser associated therewith, said condenser comprising sheets of metal having refrigerant spaces between them, said sheets bein coextensive with a wall of the cabinet and eing' bent to form a chimney like passage through which air will How by the natural draft induced by the transfer of heat from said condenser, and mechanical means supported by said cabinet for supplementing said natural draft and acceleratlng the How of air through said condenser.

4. In a mechanical refrigerating system, a cabinet, a fan, a condenser secured to a vertically extending wall of said cabinet, said condenser formed of sheet metal to a box-like shape open at the top and bottom and provided with hollow walls for the passage of refrigerant, and means for directing air currents from said fan through said condenser.

5. In a mechanical refrigerating system,

a cabinet, a condenser secured to a vertically extending wall thereof, said condenser formed of sheet metal to a box-like shape open at the top and bottom thereof and being provided with hollow walls through which refrigerant is adapted to pass, and a fan for forcing air into the bottom of said condenser.

6. In an artificially cooled refrigerating cabinet, a condenser positioned on vertically extending wall thereof, said condenser formed to the shape of a Hue and being provided with hollow Walls for the passage of refrigerant through the same, and means within said cabinet for directing air into said Hue. 7. In a mechanical refrigerating system, a cabinet, and a condenser secured to a vertically eXtending' wall ofthe same, said condenser formed to provide a vertically extending Hue and having hollow walls through which refrigerant is adapted t0 be passed, and a fan in the lower portion of said cabinet for forcing air into the bottom of said Hue.

THOMAS J. LITLE, JR. 

